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CVE-2026-83374VulnerabilityPublished

Red Hat Security Advisory: OpenJDK 25.0.5 Security Update for Windows Builds

Affects Red Hat OpenJDK 25.0.5Source GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-83374· Medium 5.9

Not known to be exploited · CVSS 5.9 Medium.

Data as of 30 Oct 2026, 03:00 UTC

CVSS 3.1 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (oracle)CVSS 3.15.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle Java SEAffected
  • 8u503 – 27
7 affected builds
Fixed in–
Oracle CorporationOracle GraalVM for JDKAffected
  • =17.0.20.1
  • =21.0.12.1
Fixed in–
Oracle CorporationOracle GraalVM Enterprise EditionAffected
  • =21.3.19.1.1
Fixed in–
Mavencom.oracle.java/java-sepkg:maven/com.oracle.java/java-seOther threatsAffected
  • 8u503 – 27
8 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released an official security update (OpenJDK 25.0.5 for Windows) that addresses all listed vulnerabilities. Users should apply this update promptly to ensure their systems are protected. Before applying this update, ensure all previously released relevant errata have been applied. Detailed update instructions are available in Red Hat's advisory at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official update.

Description

Red Hat has released a critical security update for the Eclipse Temurin build of OpenJDK 25 for Windows, version 25.0.5. This update replaces versions 25.0.4 and 25.0.4.1 and includes multiple security and bug fixes addressing numerous vulnerabilities across various components such as TLS, LDAP, HTTP client/server, XML processing, image handling, and certificate validation. The update also distrusts certain intermediate CA certificates due to security concerns. The advisory covers a broad set of CVEs related to enhancements and fixes in cryptographic operations, authentication mechanisms, and processing of various data formats.

References

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